Optec 2" to T-thread Adapter for 2” TCF Focuser

The 2-inch to T-thread Adapter is Optec's original secure fit adapter for M42 x 0.75mm T-thread cameras requiring a male T or T2 screw-in threaded nosepiece. By holding tight tolerances (+/- 0.003") Optec has achieved a slip-fit that is second-to-none. When used with the TCF-S focuser, the #17664 with its incorporated precision machined dovetail cut exactly matches the three thumbscrews on the focuser's drawtube. By tightening the thumbscrews, the dovetail is drawn tighter to the face of the drawtube completely eliminating flexure.